I do not know if you were able to resolve your search.
However, Guysborough is next to Sheet Harbor, where James, Patrick, and Margaret Coady Murphy immigrated ca. 1860. See references on this forum to the three Coady brothers in Atlantic Canda. James was the fourth of those brothers, according to J.L. MacDougall's "History of Inverness County, Nova Scotia," which is available online: htp://www.electricscotland.com/canada/inverness